Home / 1,353.10-2,030.28-1,331.26

Finding the Fourth Proportional to 1,353.10, 2,030.28 and 1,331.26

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Solution

The fourth proportional to 1,353.10, 2,030.28 and 1,331.26 is: 1,997.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.10 : 2,030.28 = 1,331.26 : x
  2. Step 2: Convert to fraction form
    1,353.10/2,030.28 = 1,331.26/x
  3. Step 3: Cross multiply
    1,353.10x = 2,030.28 × 1,331.26
  4. Step 4: Simplify right side
    1,353.10x = 2,702,830.55
  5. Step 5: Solve for x
    x = 2,702,830.55/1,353.10
  6. Step 6: Final answer
    x = 1,997.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.